Sole-channeling machine



F. E. BERTRAND; SOLE CHANNELING MACHINE.

APPLICATION FILED JUNEI. 1919.-

Patented July 5, 1921.

' 2 SHEETSSHEET 1.

F. E. BERTRAND.

SOLE CHANNELING MACHINE.

APPLICATION FILED JUNE 1. 1919.

Patented July 5, 1921.

2 SHEETS-SHEET 2- UNITED: STATES PATENT orrice.

FREDERIG E. BERTRAND, OF LYNN, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION O NEXV JERSEY.

To all whom it may concern Be it known that I, Fnnmmio E. BER- TRAND, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, haveinvented certain new and useful Improvements in Sole- Channeling Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to makeand use the same.

This invention relates to stock fitting machines and more particularly to such machines for channeling soles for use in the manufacture of turn boots and shoes.

The prevailing style of shoe making at the present time demands the use of lasts having extremely pointed toes and this style is especially prevalent in turn shoes. To build a shoe on these narrow toed lasts it is necessary to shape the sole with a much more pointed toe than has generally been in use, such soles being known to the trade as peaked-toe soles. Much difficulty has been experienced .in inseaming the shoes in which these soles are incorporated due to the fact that the operator of the inseaming machine is not permitted, by reason of the narrow space at the extreme point of the toe, to sew down the advance side of the toe with stitches that are inserted, as they should be, at right angles to the line of feed. Consequently, in order to give more room for the strokes of the awl and the needle the shoe is swung somewhat before it should be. As a result the stitches are distorted and the between substance weakened to such an extent that the shoe rips at the toe, frequently before its completion, causing a cripple. This is particularly true in making turn shoes. In this type of shoe the step of turning it right side out places a severe strain on the inseam at the toe, which if it is not securely fastened to the upper about the toe,

thus avoiding the production of cripples from the cause hereinbefore alluded to.

In accordance with this object a feature of the invention comprises the provision of means in a sole fitting machine which will SOLE-GHANNELING MAGHIN E.

Specification of Letters Patent.

enable the operator to produce a stronger sewing-rib about the end of the toe where the increased strain on the between-substance occurs. It is proposed to strengthen the sewing-rib by putting more material into the between-substance, z. 6., by making it thicker. This increased thickness of between-substance will be employed only about the toe where the premature swinging of the sole, in order to make the quick turn required when inseaming pointed-toe shoes is resorted to by the operative of the inseaming machine.

It is not customary in making turn soles, for the operative to increasethe width of the margin, or feather, when cutting about the toe, as is done when making welt insoles. The position of the edge gage is, therefore, not changed in turn work, except when drawing on at the heel end for heelseat sewed work, but in making peaked-toe soles the heel end is not channeled since the shoes in which these soles are incorporated have nailed heel-seats. Accordingly, to improve the fitting of peaked-toe soles, the presentinventor has conceived that a simultaneous movement of the edge gage and shoulder knife away from the point of the channel knife may be used to produce a thicker between-substance while at the same time preserving the desired even width of the margin, or feather. Such a movement will have the effect of throwing the chan nel cut in, slightly, without altering the marginal cut in any way. To this end the shoulder knife block is connected to the edge gage slide in such manner that while the knife may be adjusted vertically, as usual,

'for any edge thickness desired, it will also the between substance. In operating the machine the edge gage operating handle will Patented July 5, 1921. AppIication filed June 7, 1919. Serial No. 302,577. r

V i be manipulated to throw the gage back when the shoulder knife is about one and one-half inches from the tip of the toe and then bring it forward again at a like point "on the op- 7 posit-e side of the sole thus confining the; thicker between-substance the sole alone.

to the toe end" of To the accomplishment of this object and such' others asmay hereinafter appear, as will be readily understood by those skilled in'the art, the invention.comprises the features and combinations of parts hereinafter described and particularly pointed out in the appended claims.

'The preferred embodiment ofthe invention is illustrated in the'acoinpanying drawings, in which the invention has been shown 7 for'purposes of description as embodied in the turn work Goodyear universal channeling machine described by Letters Patent of the United States to the present inventor Nos. 1,030,704 and 1,030,710, both dated June "In the drawings Figure 1 is a rear elevation of a portion of said channeling machine showing the operating tools and improved 7 mounting of the shoulder knife; Fig. 2 is a plan-of the parts shown in Fig. 1, including also the edge gage operating mechanism;

and F ig'. 3 is an end elevation of a portion of the improved machine withthe channel knife block removed.

In the illustrated embodiment of the invention the work support 10; the channel knife block 12 and channel knife 14, carried onthe lower end of the channel slide 16; the shoulder knife block 18 and shoulder knife 20, carried onthe lower end of the shoulder knife slide 22; the channel knife pressure gage 24 supported on the channel knife block; the shoulder knife pressure gage 20 at the lower end of the arm 28 depending from the independent slide 30; the edge gage 32 and its operating mechanism all maybe, and preferably are, the same as illustrated and described in said patents hereinbefore referred to, with the exception of. the shape of the channel knife block 12 and its knife 14..

The channel knife block 12, it will be observed, is so formed as to support a channel knife 14 so shaped that in order to perform its function it must be positioned with its shank arranged vertically with respect to the plane of the work table instead of obliquely thereto as illustrated in said prior patents. The purpose of this shape of channel knife is more particularly for peakedtoe work, sinceit has been found that the obliquely arranged knife interferes with the turning of the toe on soles of this style because of the small amount of room at the toeallowed by the rapidly converging sides of the sole. The vertical shank on the channel knife and the simplified holder therefor, as will be recognized by those skilled in the Letters Patent of art, permit an easy turning of thepeakedtoe soles 'vvithout'interference. This change forms no. part of the present invention. 7 Also as in said prior patents, the slides 16, 22, and 30 are mounted in an oscillating carrier 33 which isactuat'ed by a link 34' connecting it with a rocking arm 36 driven "from an eccentric 38 on the driving shaft of the machlne, and the work 15 fed across the work support 10 on the forward stroke of this carrier by means of the pressure ofthe gages 24 and 26upon it. 'On the'backward stroke ofthe carrier, however, thework is 7 held from movement by pressure from the presser foot 40 carried at the lower end of a spring PIQSSGClCEtlllGIf 41 which is given a vertical reciprocatory movement by connec- .tions asdescribed in said patents, with a sec-' ond eccentric on the main shaft. i lwo CllSiJlIlglllSlllIlg.fQHtUTGS between the illustrated embodiment of the inventionand the machine of saidpri'or patents reside in the mountingpf theshoulder knife block 18 upon its slide-22. Themountingis such as to permit a movement of theshoulderlniife 20 across the line of feed relative to the point of the channel knife 14, without alter ing the depth or other-characteristics of the cut whichis made by either knife' It will be understoodthat when the knifeis moved in this manner, the operator moves the sole} with it and to the same extent .As a result the between-substance is either increased or decreased in width according to the direction of movement of the knife and sole. A. convenient actuating mechanism for this movement of the shoulder knife is prefer-- ably connected to the edge gage operating mechanism in such manner that'itpa'rtakes of the adjusting movement of the edge gage. To accomplish this end theshoulder knife block must be so mounted upon its'slide 22 as to permit of its having a movement hori-' zontally across the endlofthis slide. Ac-

cordingly the slide 22 is provided at its lower end with a block 42 of dovetail formation, the length of which is normal to thethe same purpose as the similar connection depending 1 shown in said prior patents hereinbefore-referred to. There is this difference, however, that the horizontal barrel 58-on the lower end of the pin 54 is lengthened to completely fill the space between the two ears supporting the pin 62 on which this barrel rotates, as the knife carrier 33 oscillates. The purpose of this construction is to insure that movement across the line of feed imparted to the edge gage 32 by its adjusting mechanism will also imparta like movement to the pin 5a which is thus transmitted to the sliding way 46 and hence to the shoulder knife 20. An examination of said prior patents will disclose that heretofore the barrel 58 has been made shorter than the distance between the ears 60, thus permitting an adjustment of the edge gage relative tothe shoulder knife. By the present arrangement, however, the edge gage'and shoulder knife have a common movement across the line of feed and their relation to each other is never altered whatever position they may assume.

The edge gage support 56 is provided with a block 64c on its under side of dovetail formation which slides in a way, formed in a block 66, parallel to the slide way between the parts as and 4:6 carried bythe frame, this construction being similar to that heretofore used. The edge gage support 56 is provided with arack 68 at one end and meshing with this rack are the teeth on a segment 70 carried by one end of a lever 72 pivoted on the frame at 74. The lever 72 is connected to the mechanism'within the barrel 76 and is oscillated to adjust the edge gage 32 across the line of feed by an operating handle 7 8. The mechanism between the operating handle 7 8 and lever 7 2 is all as illustrated in said prior Letters Patent and particularly described and claimed in Letters Patent of the United States to William 0. Meyer, No. 98 1,773, dated February 21, 1911.

In operating the machine the sole is entered in the usual way with the operating handle 78 in such a position that the edge gage 32 is thrown to its forward position as shown in Fig. 2. This provides for the usual thickness of the between-substance between the channel and shoulder formed by the knives 1 1 and 20 respectively. When the feeding of the sole has progressed to a point about opposite one end of the tip line in the finished shoe, the operating handle 7 8 is moved in a direction to withdraw the edge gage to an extent determined by thesetting of the adjusting stops provided for that purpose, and this movement, by reason of the connections described, carries the shoulder knife 20, with the gage, away from the point of the channel knife 14. Since the operator, during the fitting operation, always maintains the edge of the sole in contact with the edge gage, the eifect of this movement is to increase the width of the betweensubstance, thereby adding to it the strength the sewing-rib at this portion of the sole. Those skilled in the art will understand that the character of neither of the cuts is changed by this operation. The feed is continued with the knives in this relative position until the sole has been swung at the toe and a point about opposite the other end of the tip line is reached, at which time the operating handle 78 is again moved, but in the reverse direction, so as to advance the edge gage 32 to its former position. The shoulder knife 20 is carried forward with the gage and the between-substance, from that point to the completion of the operation on the sole, is again reduced to its normal thickness.

Nothing herein contained is to be interpreted as limiting the invention in the scope of its application to use in connection with the particular machine, or the particular mode of operation, or both, selected for purposes of illustration and explanation. While the particulars of construction herein set forth are well suited to one mechanical form of the invention,

which is desired for it is not limited to these details of construction,'nor is it tobeunderstood that these particulars are essential since they may be variously modified within the skill of the artisan without departing from the true scope of the actual invention, characterizing features of which are set forth in the following claims by the intentional use of generic terms and expressions inclusive of various modifications.

What is claimed as new, is

1. A sole channeling machine having, in combination, a channel knife, a shoulder knife, and means for moving one of said knives across the line of feed toward and from the other without altering the depth of cut.

2. A sole channeling machine having, in combination, means for producing a marginal channel and an edge out forming an intervening between-substance, and means operable while the machine is running for varying the thickness of said between-substance while preserving the original character of the cuts.

3. A sole channeling machine having, in combination, two knives for forming marginal cuts in the same face of the sole thus producing a between-substance, and means operable while the machine is running for varying the distance between the points 0 said knives without changing their vertical relation, to vary the thickness of the between-substance.

4. A sole channeling machine having, in combination, a work support, two knives opposite the work support for forming marginal cuts in the same face of the sole thus producing a between-substance and means operable while the machine is running for varying the distance between the points of 7 knife, a shoulder knife, andmechanism under control ofthe operator for movingv one of said knives toward and from the other knife an ed e 'a 'e 'ed 'e a e oo'eratin J b b D 7 C 23 b across the line of feed in a plane parallel tothe supporting face of the worksupport.

6, A sole channeling machine having, in combination, a channel knife, a shoulder means controlled by said moving the shoulder knife and from the point of the mechanism, and mechanism for bodily toward channel knife, 7

v7. A sole channeling machine having, in

' combination, an edge gage support carrying an edge gage, a knife block carrying a shoulder knife, and means for movlng said gage and knife across the line of feed with out altering their relationvto each other.

8. A sole channeling machine having, 1n comblnatlon, an edge gage support carrying an edge gage, a knife-block carrying a shoulder knife, connections between said support and block to-insure a common movement thereoffacross the line of feed, and suitable actuating means. 7 A sole channeling machine having, in combination, anedgegage, means for adjusting said gage across-the line or feed, an edge knife, and connectingn echanism'be tween said tools whereby the edgeknife partakes of the movements of the edge gage.

10. A sole channeling machine having, in'

combination, a knife slide, a knife block supported by said slide, a sliding connection between said slide and block permitting movement of the knife across {the line of feed, and actuating means for moving said block relatively to said slide While chine continues in operation. v V V .11. r In a sole channeling machine, means for supporting and feeding the sole, means for forming a between-substance,Eand means for varying its thickness during the'opera-c tion of the machine. V

12. In a sole channeling machine, means forsupporting and feeding the sole, means for, forming a between-substance, and means undercontrol of the operator for varying its thickness onany desired portion of the. sole fed to the. forming means.

the ma- 

